Baths of Caracalla Tickets

You walk the same route a Roman bather did, through the cold, warm and hot rooms in order. The frigidarium came first, then the tepidarium, then the caldarium, kept hot day and night by the furnaces burning below the floor.

The first thing that stops people is the height of what’s still standing. The brick vaults were the plain structure behind marble that’s long gone, and even bare they’re what visitors remember.

At the natatio, the vast open-air pool, look for the ancient game board scratched into the poolside stone. Huge mosaic fragments lie around the halls, sea creatures and gods, most of them fallen from an upper floor that no longer exists.

Walk out to the outer wall before you leave. It stood a long way from the baths themselves and was lined with shops, so the whole complex was really a walled leisure city. Find a fallen column drum and sit for a few minutes. Few of Rome’s big ruins give you the space to just sit and look. This one does.

In its prime, the complex had coloured marble walls, mosaic floors and statues in every niche. It ran free for Roman citizens and held 1,600 bathers at a time, with libraries, gyms and gardens filling the wings.

You can still visit the best of it, just not here. The Farnese family dug up the site in the Renaissance and carried off the two most famous finds, the Farnese Hercules and the Farnese Bull, now in Naples’ archaeological museum. The finest floor mosaics hang in the Vatican Museums. Granite columns from the upper floors hold up the nave of Santa Maria in Trastevere, and the two bathtub-shaped fountains in Piazza Farnese originally stood beside the pools here.

Under the lawns is the machine that kept it all running: around two kilometres of service tunnels where an estimated fifty wood-fired ovens burned around the clock, fed by the baths’ own aqueduct and two miles of lead piping. The tunnels are enormous and well lit, with mostly high ceilings, so it never feels like a crypt down there.

This level also holds Rome’s largest Mithraeum, the underground hall where the cult of Mithras met, its ritual pit still cut into the floor. Access is the catch. The Mithraeum opens only for special events, and even the main underground can be shut on an ordinary day with no warning. Treat both as a bonus. If seeing them matters, book one of the night openings below, which include them on the route.